Home / 516,404.20-774,606.30-142,426.60

Finding the Fourth Proportional to 516,404.20, 774,606.30 and 142,426.60

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Solution

The fourth proportional to 516,404.20, 774,606.30 and 142,426.60 is: 213,639.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,404.20 : 774,606.30 = 142,426.60 : x
  2. Step 2: Convert to fraction form
    516,404.20/774,606.30 = 142,426.60/x
  3. Step 3: Cross multiply
    516,404.20x = 774,606.30 × 142,426.60
  4. Step 4: Simplify right side
    516,404.20x = 110,324,541,647.58
  5. Step 5: Solve for x
    x = 110,324,541,647.58/516,404.20
  6. Step 6: Final answer
    x = 213,639.90

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.